Perhaps you should try some spelling variations:
boon chong » boon siong, joon chang
chong you » chang you, thing you, chong yah
dang haji » dang hai, dato haji
ying jin » yang jin, jing ji, yang jie
you who » you why, you what
yang xi » yang jui
yang yi » yang jui
a boon » a book

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: a boon chong you who ((((ying jin) or (yang di))) or (((yang xi) or (yang yi)))) dang haji ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: a boon chong you who ((((ying jin) OR (yang di))) OR (((yang xi) OR (yang yi)))) dang haji ;.
• Adding a wildcard symbol may retrieve word variants: a boon chong you who ((((ying jin) or (yang di))) or (((yang xi) or (yang yi)))) dang haji ;*.